Recent content by marcusesses

Yes, those are the same as the 1st and 3rd equations in my comment.

Homework Statement Say I have two objects on top of each other in an elevator (say Object 1 on the bottom and Object 2 on top), each with a given mass. The elevator is accelerating downward (meaning the elevator is moving up and slowing down). What would the normal force be on Object 1...

Homework Statement Homework Equations After creating a FBD and analyzing the forces, I get the equation for the angle as ## tan \theta = \frac{k q^2}{m g r^2} ## The Attempt at a Solution [/B] I have tried to find a way to find the distance between the charges ## r ##, but the only way I...

Normalizing a wave function means finding the form of the wave function that makes the statement \int^\infty_{-\infty} \psi^* \psi dx = 1 true. Essentially, normalizing the wave function means you find the exact form of \psi that ensure the probability that the particle is found somewhere...

How would you suggest students learn mathematics? I'm not disagreeing with you, but it seems that if schools are not (or are unwilling to) educate students, that job would fall to the parents, who may not have the requisite knowledge to teach math. Are you suggesting a less-rigorous, more...

How would doing another post-doc train them to become better teachers? Unless there was a teaching component to the position (highly unlikely, especially if there is a shortage of funds), then this will only give the candidates a good boost on their research CV, while doing nothing to improve...

(Apologies if this is long, perhaps you can just cherry-pick the parts that are interesting to you...) By all accounts, it seems there is a worldwide shortage of qualified physics teachers. It has been claimed that this shortage is due to low wages, poor working conditions, lack of support from...

riiiiiiiiiiight...

If you give me proper credit. But if you really want to come up with a formula (or formulae) for this, then you need to understand the basics of mechanics (i.e kinetics and kinematics). Now if the mass of the object magically increased (as some people are suggesting), then that's a...

You should pick something that interests you first. You can turn almost anything into an interesting project. Do you like sports? Music? Computers? Space? Aliens? That last one just popped into my head, but as an example, you could discuss what methods they use to try to find messages from...

https://www.physicsforums.com/showthread.php?t=28

Thanks for the replies... Would there be some analytical way to determine which way is more efficient? I guess I can intuitively see how finding the peak for each run and then taking the average would be a better way, since for each individual data point, there may be random errors, but if you...

If the object is moving along the ground and a mass is added, then the force of friction will increase and the object will slow down. If it is moving in the air (e.g an airplane), then the additional mass will be an additional force acting on the object, and the object will rotate about the...

Homework Statement Say I perform an experiment, and I make a number measurements over a given interval (e.g t=0s to t = 10s, every 1s), and I perform this experiment many times. Now, let's say I make a plot of data vs. time, and I want to find when the data peaks in time on average...

So would it be possible for a high school teacher to do original research, or collaborate on a research project? Or would on just have to do quantum mechanics in their own time?